JPH04114872U - Swing support device for tilt steering column - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce manufacturing costs by reducing the number of parts and simplifying assembly work. [Structure] The front part of the steering column 4 is supported by a swing support bracket 14 formed by bending an elastic metal plate. At the peripheral edge of the circular hole 18 of the swing support bracket 14, there is a support cylindrical portion 20 consisting of a plurality of arcuate walls 19, 19.
is provided, and the front part of the steering column 4 is pushed into this support cylindrical part 20.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The tilt-type steering column swing support device according to this invention is Tilt type steering wheel that adjusts the height position of the steering wheel according to the situation. Built into the column and used to swingably support the front part of the steering column. Ru.

0002

[Conventional technology]

Adjust the height of the vehicle's steering column to suit the driver's physique or driving posture. The steering wheel, called a tilt-type steering column, can be adjusted accordingly. Height adjustment devices have been widely used in the past. And a tilt type screen like this The steering column has a rocker that supports the front part of the steering column so that it can swing freely. A dynamic support device is incorporated.

0003 Figures 6-7 show a tilting steering wheel incorporating a conventionally known rocking support device. An example of a working column is shown below. In Figure 6, 1 is the fixed side bracket. It is supported and fixed to the vehicle body on the underside of the dashboard, etc. This fixed side The bracket 1 has a pair of vertical walls 2 that are parallel to each other, and the vertical walls 2 are aligned with each other. A pair of elongated holes 3 are formed in the vertical direction at the respective positions.

0004 The middle part of the steering column 4 through which the steering shaft 13 is inserted has an elevating mechanism. The side bracket 5 is fixed, and the elevating side bracket 5 is placed between the pair of vertical walls 2. It is held in between. Further, an elevating member passing through the elevating side bracket 5 in the left and right direction Both ends of the rod 6 are connected to the outer wall surfaces of the pair of vertical walls 2 through the pair of elongated holes 3. A tilt lever 7 is supported at one end thereof.

[0005] This tilt lever 7 engages the fixed side bracket 1 and the elevating side bracket 5. In the state shown in FIG. 6, the rotation of the tilt lever 7 A nut fixed at the center and threaded onto the end of the lifting rod 6 secures the fixed position. The inner surface of the vertical wall 2 of the fixed side bracket 1 presses against the outer surface of the elevating side bracket 5. Then, the elevating side bracket 5 is fixed to the fixed side bracket 1. At the same time, the edge of the stopper 8 formed at the base end of the tilt lever 7 and the The tension wall 9 formed on the fixed side bracket 1 collides with it. In addition, the tilt lever -7 from the state shown in Fig. 6 in the clockwise direction in the figure, the stopper 8 and the tension wall 9 are separated from each other, the pressing state is released, and the front The lifting side bracket 5 can be moved up and down.

[0006] Further, on the front outer peripheral surface of the steering column 4, there is a swing side brush as shown in FIG. The bracket 10 is fixed by welding or the like, and both the left and right sides of the swing side bracket 10 are fixed. A pair of support pieces 11, 11 are connected to the side surfaces by shafts 12, 12, respectively. By fixing each support piece 11, 11 to the vehicle body, the steering column can be fixed to the vehicle body. The front part of the frame 4 is swingably supported relative to the vehicle body.

[0007] In this way, the front part of the steering column 4 is supported so as to be able to swing freely relative to the vehicle body. 6, rotate the tilt lever 7 clockwise in FIG. 5 is movable up and down, the steering column 4 is centered around the shafts 12, 12. The steering wheel, which is fixed to the rear end of the steering shaft 13, swings as shown in FIG. The height position of the eel (not shown) can be adjusted.

[0008] After adjustment, rotate the tilt lever 7 counterclockwise in FIG. For example, the steering wheel can be held in the adjusted position.

[0009]

[Problem that the idea aims to solve]

However, the conventional tilt type steering column that is configured and operates as described above In the case of a swing support device built into Since the support pieces 11 and 11 are provided through the supports 12 and 12, there are many parts and assembly is difficult. Since it takes a lot of time and effort, it is inevitable that the production cost will increase.

0010 The tilt-type steering column swing support device of the present invention overcomes the above-mentioned disadvantages. It is something that will be resolved.

[0011]

[Means to solve the problem]

The tilt-type steering column swing support device of this invention is a tilt-type steering column swing support device. Supports the front part of the steering column that makes up the steering column so that it can swing freely relative to the vehicle body. A rocking support device for a tilt-type steering column, which is a plate with elasticity. The swing support bracket is integrally formed with a material and has a mounting part for attaching it to the vehicle body. , a support part for supporting the steering column, and a support part provided on the support part, A circular hole for inserting the steering column, and a hole provided intermittently around the periphery of this circular hole. A plurality of arcuate walls are provided, and each arcuate wall is By elastically deforming it outward, the steering control is placed inside the supporting cylindrical part. It supports the front of the ram.

0012

[Effect]

The tilt type steering column swing support device of the present invention constructed as described above. If the steering column sways as the height of the steering wheel is adjusted. When moving, each arcuate wall that makes up the supporting cylindrical part deforms elastically, causing the above-mentioned Allows the steering column to swing.

[0013] In particular, in the case of the tilt-type steering column swing support device of the present invention, it has elasticity. The steering wheel is attached to the supporting cylindrical part of the swinging support bracket, which is integrally formed with a plate material. Since it can be constructed by simply pushing in the column, manufacturing costs can be reduced.

[0014]

【Example】

1 to 3 show a first embodiment of the invention. The swing support bracket 14 is made of steel. It is integrally formed by press-forming an elastic metal plate such as a plate. child By bending the upper edge of the swing support bracket 14 at right angles toward the rear, A mounting part 15 for mounting on the vehicle body is formed, and a mounting part 15 is provided at both left and right ends of the mounting part 15. Circular holes 16, 16 for inserting bolts are formed.

[0015] In addition, a steering wheel is provided at the center of the support portion 17 hanging below the mounting portion 15. A circular hole 18 is bored through which the column 4 is inserted. Then, the circumference of this circular hole 18 A plurality of (four in the illustrated example) circular arc walls 19, 19 are provided at the edge, and adjacent circular arc walls 19, By providing cuts 21, 21 between the circumferential edges of 19, intermittent It is set up in The plurality of arcuate walls 19, 19 are combined to form the supporting cylindrical portion 20. The inner diameter of the supporting cylindrical portion 20 is the same as that of the steering wheel in the free state. Each of the arcuate walls 19, 19 is formed so as to have a slightly smaller outer diameter than the outer diameter of the grid column 4. ing.

[0016] Inside the support cylindrical portion 20 of the swing support bracket 14 configured as described above, there is a The front part of the steering column 4 is connected to each arcuate wall that constitutes the supporting cylindrical part 20. 19, 19 are pushed outward while being elastically deformed, and the inside of this supporting cylindrical part 20 is pressed. The front part of the steering column 4 is supported on the side. In addition, the swing support bracket 14 is attached to the vehicle body using bolts inserted from below through the circular holes 16, 16 of the mounting portion 15. Fixed.

[0017] The tilt type steering column swing support device of the present invention constructed as described above. In this case, the steering column 4 is moved as the height position of the steering wheel is adjusted. When swinging, each of the arcuate walls 19, 19 constituting the support cylindrical portion 20 is elastically deformed. At the same time, there is a gap between the inner circumferential surface of the part of the arcuate wall 19 and the outer circumferential surface of the steering column 4. The sliding allows the steering column 4 to swing.

[0018] In particular, in the case of the tilt-type steering column swing support device of the present invention, it has elasticity. The support of the swing support bracket 14 is integrally formed by press-forming a metal plate. Since it can be constructed by simply pushing the front part of the steering column 4 into the holding cylindrical part 20, Production costs can be reduced.

[0019] Next, a second embodiment of the present invention shown in FIGS. 4 and 5 will be described. In this example, In this case, any one of the plurality of arcuate walls 19, 19 constituting the supporting cylindrical portion 20 A claw portion 22 that slightly protrudes from the inner peripheral surface of the arcuate wall 19 is provided at the center of the arcuate wall 19. The claw portion 22 of the steering column 4 is engaged with a locking hole 23 formed in the steering column 4.

[0020] Due to the engagement between the claw portion 22 and the locking hole 23, the steering column 4 and Positioning with the support bracket 14 is achieved. Other configurations and functions are as described above. Since it is the same as the first embodiment, the same parts are given the same reference numerals and redundant explanations are omitted. Omitted.

[0021] In all of the illustrated embodiments, the swing support bracket 14 is formed by press-molding a metal plate. However, this swing support bracket 14 is made of injection molded synthetic resin. It can also be made by extrusion molding. Further, the supporting edge cylindrical portion 20 has a distal end portion (FIG. , 4) is constituted by a plurality of arcuate walls 19, 19; The base end (left end in FIGS. 2 and 4) may be formed into a continuous cylindrical shape over the entire circumference. . However, even if the base end is continuous all the way around, the steering column 4 In order to enable rocking, the axial length of the continuous part over the entire circumference (the left side of Figures 2 and 4) right direction dimension) should be sufficiently small.

[0022]

[Effect of the idea]

The tilt-type steering column swing support device of the present invention has a structure as described above. It can be constructed with a small number of parts and is easy to assemble. Therefore, the manufacturing cost of the tilt type steering column can be reduced.

[Brief explanation of drawings]

FIG. 1 is a partial longitudinal sectional side view of a tilt-type steering column incorporating the swing support device of the present invention.

FIG. 2 is an enlarged sectional view of section A in FIG. 1;

FIG. 3 is a diagram corresponding to the BB cross section of FIG. 2, with some parts omitted;

FIG. 4 is a diagram corresponding to the CC cross section in FIG. 3, showing a second embodiment of the present invention.

FIG. 5 is a view seen from above in FIG. 4;

FIG. 6 is a partial longitudinal sectional side view of a tilt-type steering column incorporating a conventional swing support device.

FIG. 7 is a sectional view taken along line DD in FIG. 6;

[Explanation of symbols]

1 Fixed side bracket 2 Vertical wall 3 long hole 4 Steering column 5 Lifting side bracket 6 Lifting rod 7 Tilt lever 8 Stopper 9 Tension wall 10 Swing side bracket 11 Support piece 12 axes 13 Steering shaft 14 Swing support bracket 15 Mounting part 16 circular hole 17 Support part 18 Round hole 19 Arc wall 20 Support cylindrical part 21 Cut 22 Claw part 23 Locking hole

Claims (1)

[Scope of utility model registration request] 1. A swing support device for a tilt type steering column for swingably supporting the front part of a steering column constituting the tilt type steering column with respect to a vehicle body, the swing support device being integrally formed by an elastic plate material. a swing support bracket formed on the swing support bracket, a mounting portion for attaching to the vehicle body, and a support portion for supporting the steering column;
A circular hole provided in the support portion for inserting the steering column, and a plurality of arcuate walls provided intermittently on the peripheral edge of the circular hole and together forming a support cylindrical portion, A rocking support device for a tilt type steering column, in which the front part of the steering column is supported inside the support cylindrical part by elastically deforming each arcuate wall outward.